//也可以 npm install mime 来从npm上面进行安装

exports.types = {
  'hqx':'application/mac-binhex40',
  'cpt':'application/mac-compactpro',
  'csv':['text/x-comma-separated-values', 'text/comma-separated-values', 'application/octet-stream', 'application/vnd.ms-excel', 'application/x-csv', 'text/x-csv', 'text/csv', 'application/csv', 'application/excel', 'application/vnd.msexcel'],
  'bin':'application/macbinary',
  'dms':'application/octet-stream',
  'lha':'application/octet-stream',
  'lzh':'application/octet-stream',
  'exe':['application/octet-stream', 'application/x-msdownload'],
  'class':'application/octet-stream',
  'psd':'application/x-photoshop',
  'so':'application/octet-stream',
  'sea':'application/octet-stream',
  'dll':'application/octet-stream',
  'oda':'application/oda',
  'pdf':['application/pdf', 'application/x-download'],
  'ai':'application/postscript',
  'eps':'application/postscript',
  'ps':'application/postscript',
  'smi':'application/smil',
  'smil':'application/smil',
  'mif':'application/vnd.mif',
  'xls':['application/excel', 'application/vnd.ms-excel', 'application/msexcel'],
  'ppt':['application/powerpoint', 'application/vnd.ms-powerpoint'],
  'wbxml':'application/wbxml',
  'wmlc':'application/wmlc',
  'dcr':'application/x-director',
  'dir':'application/x-director',
  'dxr':'application/x-director',
  'dvi':'application/x-dvi',
  'gtar':'application/x-gtar',
  'gz':'application/x-gzip',
  'php':'application/x-httpd-php',
  'php4':'application/x-httpd-php',
  'php3':'application/x-httpd-php',
  'phtml':'application/x-httpd-php',
  'phps':'application/x-httpd-php-source',
  'js':'application/x-javascript',
  'swf':'application/x-shockwave-flash',
  'sit':'application/x-stuffit',
  'tar':'application/x-tar',
  'tgz':['application/x-tar', 'application/x-gzip-compressed'],
  'xhtml':'application/xhtml+xml',
  'xht':'application/xhtml+xml',
  'zip':['application/x-zip', 'application/zip', 'application/x-zip-compressed'],
  'mid':'audio/midi',
  'midi':'audio/midi',
  'mpga':'audio/mpeg',
  'mp2':'audio/mpeg',
  'mp3':['audio/mpeg', 'audio/mpg', 'audio/mpeg3', 'audio/mp3'],
  'aif':'audio/x-aiff',
  'aiff':'audio/x-aiff',
  'aifc':'audio/x-aiff',
  'ram':'audio/x-pn-realaudio',
  'rm':'audio/x-pn-realaudio',
  'rpm':'audio/x-pn-realaudio-plugin',
  'ra':'audio/x-realaudio',
  'rv':'video/vnd.rn-realvideo',
  'wav':['audio/x-wav', 'audio/wave', 'audio/wav'],
  'bmp':['image/bmp', 'image/x-windows-bmp'],
  'gif':'image/gif',
  'jpeg':['image/jpeg', 'image/pjpeg'],
  'jpg':['image/jpeg', 'image/pjpeg'],
  'jpe':['image/jpeg', 'image/pjpeg'],
  'png':['image/png', 'image/x-png'],
  'tiff':'image/tiff',
  'tif':'image/tiff',
  'css':'text/css',
  'html':'text/html',
  'htm':'text/html',
  'shtml':'text/html',
  'txt':'text/plain',
  'text':'text/plain',
  'log':['text/plain', 'text/x-log'],
  'rtx':'text/richtext',
  'rtf':'text/rtf',
  'xml':'text/xml',
  'xsl':'text/xml',
  'mpeg':'video/mpeg',
  'mpg':'video/mpeg',
  'mpe':'video/mpeg',
  'qt':'video/quicktime',
  'mov':'video/quicktime',
  'avi':'video/x-msvideo',
  'movie':'video/x-sgi-movie',
  'doc':'application/msword',
  'docx':['application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'application/zip'],
  'xlsx':['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'application/zip'],
  'word':['application/msword', 'application/octet-stream'],
  'xl':'application/excel',
  'eml':'message/rfc822',
  'json':['application/json', 'text/json']
};